Madrid, 4 February 1988 - Internal institutional documents Reply from Spain's Ministry of Culture regarding the questions put forward by Andrés Ollero in the Congress of Deputies
Philadelphia, 3 May 1939 - Institutional correspondence The Medical Bureau and North American Committee's letter to the Exhibition Committee
Philadelphia, 10 May 1939 - Institutional correspondence A letter from the Medical Bureau and North American Committee to Evelyn Ahrend
1939 - Receipt Receipts for donation made to the Medical Bureau and North American Committee to Aid Spain Democracy